KIN 147 – Biomechanics | San José State University | Exam 1 Review Spring 2025 – 3D Motion
Capture, Gait Analysis, and Injury Mechanics
What planes of movement can you capture with 3D motion capture frontal
saggital
transverse
Name the segments used to form the ankle joint? shank and foot
Name the segments used to form the knee joint? thigh and shank
Name the segments used to form the hip joint? pelvis, thigh
Name the segments used to form the pelvis joint? hip and trunk
Name the segments used to form the trunk joint? position in space
Name the segments used to form the shoulder joint? arm(maybe scapula) and trunk
What 3D motion capture marker set is commonly used in biomechanics lab? plug-in gait
What are the limitations of plug-in gait? -16 reflective markers
-Requires anthropometric data: ht, wt, leg length, knee width, ankle width
How would you use 3D motion capture to quantify how much "sway" a concussed participant
has during gait? You measure a persons' center of mass sway in the frontal plane
, angle at toe-off last data point
angular excursion total ROM the joint moves in a specific direction
T/F A participants data is normal when it is within 1 standard deviation from the normal data?
true
T/F: Recent studies show that runners with symptomatic Achilles tendinopathy or medial tibial
stress syndrome have a longer duration of eversion (pronation) but not greater excursion or
velocity of eversion true
T/F: Over-striding with an extreme heel strike does not increase forces at the knee false, this
can lead to knee injury
T/F: Forefoot running has been shown to increase forces at the ankle/Achilles true
Medial collaspe consists of what 5 joints of movement? trunk lean
hip adduction
hip internal rotation
knee valgus
pelvic drop
T/F: Men and women develop patellofemoral pain in the same manner false
T/F: Studies show that female runners with PFP display greater hip adduction, hip internal
rotation, shank internal rotation, and less contra-lateral lean true
Capture, Gait Analysis, and Injury Mechanics
What planes of movement can you capture with 3D motion capture frontal
saggital
transverse
Name the segments used to form the ankle joint? shank and foot
Name the segments used to form the knee joint? thigh and shank
Name the segments used to form the hip joint? pelvis, thigh
Name the segments used to form the pelvis joint? hip and trunk
Name the segments used to form the trunk joint? position in space
Name the segments used to form the shoulder joint? arm(maybe scapula) and trunk
What 3D motion capture marker set is commonly used in biomechanics lab? plug-in gait
What are the limitations of plug-in gait? -16 reflective markers
-Requires anthropometric data: ht, wt, leg length, knee width, ankle width
How would you use 3D motion capture to quantify how much "sway" a concussed participant
has during gait? You measure a persons' center of mass sway in the frontal plane
, angle at toe-off last data point
angular excursion total ROM the joint moves in a specific direction
T/F A participants data is normal when it is within 1 standard deviation from the normal data?
true
T/F: Recent studies show that runners with symptomatic Achilles tendinopathy or medial tibial
stress syndrome have a longer duration of eversion (pronation) but not greater excursion or
velocity of eversion true
T/F: Over-striding with an extreme heel strike does not increase forces at the knee false, this
can lead to knee injury
T/F: Forefoot running has been shown to increase forces at the ankle/Achilles true
Medial collaspe consists of what 5 joints of movement? trunk lean
hip adduction
hip internal rotation
knee valgus
pelvic drop
T/F: Men and women develop patellofemoral pain in the same manner false
T/F: Studies show that female runners with PFP display greater hip adduction, hip internal
rotation, shank internal rotation, and less contra-lateral lean true
